Add version to about screen (fix #25)

src/org/traccar/client/AboutActivity.java

@@ -16,7 +16,9 @@
 package org.traccar.client;
 
 import android.app.Activity;
+import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Bundle;
+import android.widget.TextView;
 
 public class AboutActivity extends Activity {
 
@@ -24,6 +26,12 @@ public class AboutActivity extends Activity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.about);
+
+        TextView title = (TextView) findViewById(R.id.title);
+        try {
+            title.setText(title.getText() + " " + getPackageManager().getPackageInfo(this.getPackageName(), 0).versionName);
+        } catch (NameNotFoundException e) {
+        }
     }
 
 }